Biosorption of Cu2+, Pb2+, Cd2+ and their mixture from aqueous solutions by Michelia figo sawdust

Abstract The study aimed at investigating copper, lead, and cadmium removal from both single and mixed metal solutions by Michelia figo (Lour.) Spreng. wood sawdust treated with 0.5 mol l−1 NaOH for four hours. In order to evaluate the effects of each factor and interactions between factors on metal...

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Autores principales:	Mingzhong Long, Hong Jiang, Xiaona Li
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/97c4ebe5f5504dd5bac8ffebc34db045
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spelling	oai:doaj.org-article:97c4ebe5f5504dd5bac8ffebc34db0452021-12-02T15:02:57ZBiosorption of Cu2+, Pb2+, Cd2+ and their mixture from aqueous solutions by Michelia figo sawdust10.1038/s41598-021-91052-22045-2322https://doaj.org/article/97c4ebe5f5504dd5bac8ffebc34db0452021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91052-2https://doaj.org/toc/2045-2322Abstract The study aimed at investigating copper, lead, and cadmium removal from both single and mixed metal solutions by Michelia figo (Lour.) Spreng. wood sawdust treated with 0.5 mol l−1 NaOH for four hours. In order to evaluate the effects of each factor and interactions between factors on metal ion biosorption, a 23 factorial experimental design was applied. FTIR results showed that the metal ions would bind to the hydroxyl and carboxyl groups of M. figo wood sawdust biomass. The main effects and interactions of three factors pH (3 and 5), initial metal ion concentration (C 0 , 0.157 and 1.574 mmol L−1), and dosage of biomass (D, 4 and 10 g L−1) at two levels were analyzed. The most significant variable regarding Cu2+ and Pb2+ biosorption was initial metal iron concentration. For Cd2+, pH was found to be the most significant factor. The maximum removal efficiencies were 94.12 and 100% for Cu2+ and Cd2+, respectively, at conditions of (+ 1, − 1, + 1): pH 5, initial metal concentration 0.157 mmol L−1 and dosage of biomass 10 g L−1, while 96.39% for Pb2+ at conditions of (− 1, − 1, + 1): pH 3, initial metal concentration 0.157 mmol L−1 and dosage of biomass 10 g L−1. There were some interactions between factors: pHC 0 and C 0 D for Cu2+, pHC 0 , pHD and C 0 D for Pb2+, pHC 0 and C 0 *D for Cd2+. Biosorption from a multi metal system showed that the presence of Cu2+ and Cd2+ had no significant influence on the Pb2+ removal, while Pb2+ in solution significantly decreased the removal efficiencies of the other two metals.Mingzhong LongHong JiangXiaona LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mingzhong Long Hong Jiang Xiaona Li Biosorption of Cu2+, Pb2+, Cd2+ and their mixture from aqueous solutions by Michelia figo sawdust
description	Abstract The study aimed at investigating copper, lead, and cadmium removal from both single and mixed metal solutions by Michelia figo (Lour.) Spreng. wood sawdust treated with 0.5 mol l−1 NaOH for four hours. In order to evaluate the effects of each factor and interactions between factors on metal ion biosorption, a 23 factorial experimental design was applied. FTIR results showed that the metal ions would bind to the hydroxyl and carboxyl groups of M. figo wood sawdust biomass. The main effects and interactions of three factors pH (3 and 5), initial metal ion concentration (C 0 , 0.157 and 1.574 mmol L−1), and dosage of biomass (D, 4 and 10 g L−1) at two levels were analyzed. The most significant variable regarding Cu2+ and Pb2+ biosorption was initial metal iron concentration. For Cd2+, pH was found to be the most significant factor. The maximum removal efficiencies were 94.12 and 100% for Cu2+ and Cd2+, respectively, at conditions of (+ 1, − 1, + 1): pH 5, initial metal concentration 0.157 mmol L−1 and dosage of biomass 10 g L−1, while 96.39% for Pb2+ at conditions of (− 1, − 1, + 1): pH 3, initial metal concentration 0.157 mmol L−1 and dosage of biomass 10 g L−1. There were some interactions between factors: pHC 0 and C 0 D for Cu2+, pHC 0 , pHD and C 0 D for Pb2+, pHC 0 and C 0 *D for Cd2+. Biosorption from a multi metal system showed that the presence of Cu2+ and Cd2+ had no significant influence on the Pb2+ removal, while Pb2+ in solution significantly decreased the removal efficiencies of the other two metals.
format	article
author	Mingzhong Long Hong Jiang Xiaona Li
author_facet	Mingzhong Long Hong Jiang Xiaona Li
author_sort	Mingzhong Long
title	Biosorption of Cu2+, Pb2+, Cd2+ and their mixture from aqueous solutions by Michelia figo sawdust
title_short	Biosorption of Cu2+, Pb2+, Cd2+ and their mixture from aqueous solutions by Michelia figo sawdust
title_full	Biosorption of Cu2+, Pb2+, Cd2+ and their mixture from aqueous solutions by Michelia figo sawdust
title_fullStr	Biosorption of Cu2+, Pb2+, Cd2+ and their mixture from aqueous solutions by Michelia figo sawdust
title_full_unstemmed	Biosorption of Cu2+, Pb2+, Cd2+ and their mixture from aqueous solutions by Michelia figo sawdust
title_sort	biosorption of cu2+, pb2+, cd2+ and their mixture from aqueous solutions by michelia figo sawdust
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/97c4ebe5f5504dd5bac8ffebc34db045
work_keys_str_mv	AT mingzhonglong biosorptionofcu2pb2cd2andtheirmixturefromaqueoussolutionsbymicheliafigosawdust AT hongjiang biosorptionofcu2pb2cd2andtheirmixturefromaqueoussolutionsbymicheliafigosawdust AT xiaonali biosorptionofcu2pb2cd2andtheirmixturefromaqueoussolutionsbymicheliafigosawdust
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Biosorption of Cu2+, Pb2+, Cd2+ and their mixture from aqueous solutions by Michelia figo sawdust

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